Incubator



-L- en) Patented Nov. 3, 1925.

`onlir'tmzs r. ern-or BUoYRUs, 01110.

I'NCBATOR.

Appncatin ine-d rebr'ualy 1, 19241 seall No. 659,959.

To all I'ic/0m 'it may concern.'

Be it lrnoivn that LCrrAnLEs F. OTT, a citizen of the United States, residing at Bucyrus, in the county of Crawford and State of Ohio, have invented a .new and useful Incubator, of which .the followingl is al specificati-on.

This invention aims to provide novel means for securing a proper circulation of air in an incubator and formaintaining the air ata proper temperature.'

i It is Within the province of the disclosure to' improve generally and to enhance to utility of devices of that type to which the invention appertains.

lV'th the above and other objects in view, which Will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood, that, with in the scope of what is claimed, changes in the precise embodiment` of the invention shown, can be made, Without departing from the spirit of the invention.

Figure 1 shows in front elevation, a device constructed in accordance With the invention; Figure 2 is a` plan of the tank; Figure 3 isa sectional View illustrating the valve mechanism for the tank shown in Figure 2; Figure l is a transverse section of the incubator; Figure 5 is a topl plan of the incubator; Figure 6 is a section of the inf cubator, the cutting plane inFigurey 6 being at right angles to the cutting plane in Figuree; Figure 7 isa plan of the floor of the casing.

The deviceforming the subject matter oi" this application comprises a cabinet 1 including double Walled ends 2, a bac-lz 3, a front 4, a top 44 and a bottom :3. l

llfithin the cabinet 1 is disposed accasin'g 6 comprising a top 7, a bottom 8, a back 9, a front and ends 11.` The bottoni 8 of the casing 6 is spaced but a small distance from the bottom 5 of the cabinet 1, the same observation holding true with respect to theback 9 of the casing 6 and the bach 3 of the cabinet 1. Likewise, the front 10 of the casing 6 and the front t of the cabinet 1 are disposed relatively near to each other.

Noti-ng Figure 6, it Will be observed that the ends 11 of the casing 6 are vspaced at considcrabledistance from the ends 2- of the cabinet 1, the top la of the cabinet 1 being spaced at some distance from the top 7 of the casing 6. The ends 11 of the casing 6 are spaced from the bottoni 8 of the casing,

so that openings 12 exist .in the ends of the casing 6, at the bottom of the casing, as a comparison of Figures 6 and Ll Will show. The front 10 of the casing 6 has a doorway 14, registering With a doorway 15 in the front l of the cabinet 1, the doorways being controlled by a door 16 hinged to the front 4 of the cabinet 1. A frame 17 is located between the parts 10 and l and' extends about the doorways 111 and 15', to prevent the escape of air through the door`l Ways, from the space which exists between the casing 6 and the cabinet 1-an olaservation which will be understood better after the circulation of air has been traced out. Access to the lower portion of the casing 6 is had by Way of an auxiliary door 1S, located beloW the door 16 and hinged to the front 4f of the cabinet 1. The door 18 gives access to a tank 28 hereinafter described. A supplemental door 19 isf hinged tothe front 4l of the cabinet 1 and is located at one end of the door 16. The door 19 gives access to cert-ain of the driving mechanisms hereinafter described and shown at the left hand end of Figure 6.

Partitions 20 of inverted U-shape extend between the top 7 of the casing 6 and the top 446 of the cabinet l, the partitions ea-` tending downwardly between the ends 11' of the casing 6 and the ends 2 of the cabinet 1, shown in Figure 6, the/partitions coopH erating to dene an inverted U-shaped passage, clearly indicated in Figure 6 and marked by the reference numeral 21 in Figure Il. In the ends 11 of the casing 6, near to the top of the casing, there are openings 22, located on opposite sides of the depending ends of the passage 21. The top 44 the cabinet 1 is supplied with fresh air openings 23, connnunicating with the passage 21, as shown in `Figure 6. The top 14; of the cabinet- 1 has' foull air out-let holes 211; These holes 2st do not communicate withV the passage 21 but do communicate with the' space betvveen the top 44 of the cabinet 1l and the top of the casing 6 externally of the passage 21.

A floor extends across the casing 6, near to the lower end thereof, and is provided witlra plurality of a )ertures 26, a

Cil

layer of netting 2T or the like, being niounted on the floor 25. A T-shaped water tank rests on the bottom 8 of the casing 6 and includes a head 29 and an arm 30, the arm extending outwardly through the front lO--i as shown best inFigure There are openings 3l in the top of the head 2t1of the water ank 26. Figure 3 shows that there is an opening 32 inthe outer eno of the arm 36 of the tank 2S, the opening 32 being located at the top of the arm so that a quantity of water may beheld in the tank 28. A valve 33'in the form of a cap, is mountedtorotate onthe outer endvof the arm of thetank 2S, and has an opening 34e, adapted to register with the opening in the arm 3() of the tank By rotating the valve 36, the openings 54 and may be brought more or less into registration, thereby governing the amount of air which enters the tank, and by rotating the cap or valve 33 through an arc of 180 degrees from the posit-ion shown in Figure 3, the opening $32 may be closed entirely,.and the supply of ai r cut otf completely.r

.fr flue 35 is mounted in the top ist of the cabinet l and in the top 'i' of the casing 6, and connnunicates with the compartment 36 which exists in the casing 6 above the floor its shown in Figure et, the fine 35 passes across the passage'2l, but there is no communication between the flue and the passage. The flue is controlled by a damper 3T under the governance of a thermostat 38.

rThe air within the incubator may be heated in any desired way, but, if preferred, a

ater coil 39 may be located below the floor 25, the coil communicating with a .heating tank Ll0, a pipe Il2 connecting the' heating tank el() with an expansion tank t-l, shown in Figure 1. The heater for the tank e() is marked by the numeral i3 and is regulated by a damper etti controlled by a thermostat 45. f I A.

Before alluding to the means whereby the eggs are mounted in ,the incubator, the circulation of air will be traced out.

When the thermostat damper 37 is closed, air rises through the eggs, and goes out of the egg compartment through the openings rlhere it divides, part going up and out through the holes 24, and part going down through the openings 121, and up again through the eggs. The air that goes out through the holes 2-l is replaced, partly, by umnoistened air, through theopenings 26 and the passage 2l, and partly by moistened air through the part 30. By adjusting the valve 33, the attendant can govern the ratio of fresh moistened air to that of fresh uninoistened air, that is supplied' to the eggs, and so govern the humidity of air Varound the eggs.

s Passing to the means whereby the eggs are carried, it will be observed referring particularly to Figure 6, that a main shaft il? is journaled in the end walls 1l and 2 of the'incubator, an auxiliary shaft 4S being supported likewise. The shafts 48 and i? are connected operatively by interineshing gear wheels t9. Theshaft 48 carries a worm wheel 50 cooperating with a worm 51 on a shaft 52, the shaft 52 being disposed at right angles to the shafts 4S and eti, and being driven by a motor 53 (Figure l) mounted on the front 4 of vthe cabinet .1; Disk-like heads et are secured to the shaft 47 and are located within the casing 6,` the heads being connected by supports 55, inthe form of rods. Egg carriers 56 are mounted at 58, for swinging movement, on the supports or rods 55, each egg carrier being pro vided with a hinged door 7,jadapted to be opened, as shown inFigure Ll, when the door 16 is opened, to permit the eggs toy be placed in the carriers 56. The eggs may be mounted in trays 59 of any desired construction, supported within the carriers. .Any suitable means may be provided for turning `the eggs, but, since a specific forni ofegg 'turner cannot be covered in this application, no egg turner is shown or described.

'lhe motor 53 drives the shaft 52, the shaft 52 imparting rot-ation to the shaft 4:8 by way of the worm 51 and the worm wheel 50. The gear wheels .t9 transn'iit motion to the shaft 47, and when the shaft 47 isrotated, the egg carriers 56 will move in an orbit between the top portiony ofV the co1npart-ment 36 and the bottom portion thereof. The air in the top portion of the compartment 6 is warmer than the air in the lower portion of the compartment, or, at least there is not a uniform temperature in the air at all points between the top and the bottom of the compartment. Since the egg carriers 56 move slowly in an orbit, the yeggs in; the various carriers all'will have the same treatment and will be subjected to an average temperature. y

The circulation of the air has been described hereinbefore, andr the description need not be alluded to at this point. f

The device forming the subject matter of this application provides for a continuous circulation of air in the incubator. As the air is heated, it Y rises and passes through the eggs and, then, moves downwardly, the cycle being repeated, an even temperature being obtained. It is to be observed that this device is compact in construction.A

Having thus described the invention, what l claim as new is:

l. An incubator comprising a cabinet, a casing within the cabinet, and provided at its ends with upper and lower openings and an inverted U-shaped fiue extended across the top ofthe casing and downwardly along the ends of the casing, the upper openings communicating with the space between the lil() Cabinet and the easing, .indenependentl57 oi the flue, the top of the cabinet having an inlet openingl communicating with the flue, and having an air outlet opening independent oia the 'flue and communicating with the space between the top of the easing and the top ot' the cabinet, an air outlet fine Communicating with the interior oi" the casing, means 'for controlling the passage of air through the last specified 'fine thermostatically, means for heating the air Within the easing, a rotary member jomnaled in the casing, egg

member, and means tor operating the rotary member.

Carrying means on the rotary In a device of the class described, a eabinetharing a doorway, means for heating' the cabinet7 a rotary member jonrnaled in the cabinet for movement about an approximately horizontal axis, means 'for rotating said meniber, an egg Carrier mounted to swing. on the rotary member, and a closure hinged to the carrier and adapted to be swung to an open position through the doorway, to serve as a platform.

in testimony that I claim the foregoing as my own, i have hereto aHiXed my signature.

CHARLES F. OTT. 

